kilometre to light-year
Live kilometre (km) to light-year (ly) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from kilometre to light-year. Use the converter above for arbitrary values.
| kilometre (km) | → | light-year (ly) |
|---|---|---|
| 0.001 km | → | 1.0570e-16 ly |
| 0.01 km | → | 1.0570e-15 ly |
| 0.1 km | → | 1.0570e-14 ly |
| 0.5 km | → | 5.2850e-14 ly |
| 1 km | → | 1.0570e-13 ly |
| 2 km | → | 2.1140e-13 ly |
| 5 km | → | 5.2850e-13 ly |
| 10 km | → | 1.0570e-12 ly |
| 100 km | → | 1.0570e-11 ly |
| 1,000 km | → | 1.0570e-10 ly |
About the kilometre
1000 metres. Standard road distance unit.
About the light-year
Distance light travels in one Julian year — about 9.46 trillion km. Astronomy.
How kilometre to light-year conversion works
Both units belong to Length. Unitbox first expresses the input in the category reference unit (m), then expresses that same quantity in light-year.
Common uses include plans, dimensions, travel distances, screens, and manufacturing specifications.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert kilometre to light-year?
Multiply the kilometre value by 1.0570e-13 to get it in light-year. For example, 10 km = 1.06e-12 ly.
What is 1 km in ly?
1 km = 1.0570e-13 ly.
What is 100 km in ly?
100 km = 1.06e-11 ly.
What is the formula?
Linear: multiply by 1.0570e-13 (the unit factor ratio).
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